Atec K571 User Manual

Model K571 Resistive

Portable Load Bank - 1000 amps

Typical Designs Available are:

900 or 1000 amps, 52 volt DC load, or
1000 amp, 28 volt DC load

Custom Designs also Available

Cooling Air Loss Protection

Portable Load Bank

Master Load Switch

The Avtron Model K571 Load Bank is designed for

indoor operation and is for testing DC power sources.

The K571 Load Bank is suitable for
testing DC generating systems, con­verters, transformer-recitifier units,
battery systems, and controls. The
K571 is equipped with two fixed and
two lockable swivel casters which
allow the unit to be moved easily
from one test site to another.

Electrical connections are simplified
by the easy access terminals located
behind the access door on the front
of the unit. A safety interlock switch
disables load application if the access
door is opened for operator safety.

The load bank is completely self­contained with a blower included for

cooling the load resistor elements.
Control and blower power is derived
from an externally supplied 120 VAC,
single phase, 60 Hz source. A line
cord is included for convenient
power connection.

The control panel is equipped with
carefully arranged toggle switches
and status indicators. Large, easy
to read voltmeter and ammeter are
available mounted on the control
panel to provide accurate measure­ments during testing.

The K571 is a rugged, easy to use,
indoor DC load bank that is designed
to provide years of reliable operation

Meters Indicate Load Status

Ammeter and Voltmeter Available

in laboratory and industrial environ­ments to test batteries, transformer­recitifiers, and other DC power
sources.

Legendary Avtron quality combined
with simple operation and mainte­nance will provide years of trouble
free service.

Avtron’s extensive line of Load Bank
and Industrial Resis tor Products are
solid performers used throughout
the world.

For total technical support or
additional information, please
contact Avtron at [phone]
or [e-mail].

power test solutions

Model K571 Resistive Portable Load Bank

OUTLINE DRAWING:

62.41

[1585.00]

9.75

[247.60]

52.66

[1338.00]

22.84

[580.00]

CONTROL
PANEL

HINGED
ACCESS
PANEL

5.31

[134.80]

27.97

[710.40]

SCREENED
AIR OUTLET

5.50

[139.70]

HANDLE

SCREENED AIR INTAKE THIS
SIDE AND OPPOSITE SIDE

RIGID CASTERS SWIVEL CASTERS

SPECIFICATIONS:

RELIABILITY: The rugged load resistor assemblies in

K571 LOAD CAPACITY RATINGS:

Other designs available upon request. Consult Factory.

the K571 are cooled by a reliable heavy duty industrial
blower. Avtron’s special air switch protects load resis­tor elements against loss of cooling air. Full rated
contactors are used for switching all load steps.

INDICATOR LIGHTS: BLOWER ON and AIR FAILURE.

Volts DC Amps Load Steps in Amps

900 5, 10, 10, 25, 50, 100, 100, 200, 400

52

1000 50, 50, 100, 100, 100, 200, 200, 200

28 1000 5, 10, 10, 25, 50, 100, 200, 200, 400

SWITCHES: ON-OFF load control for each load step.
MASTER LOAD ON-OFF control for total load (all
selected steps).

METERS (Optional): Digital volt and ammeter.

COOLING: Self-contained 0.5 HP blower, 120 V, single phase, 60 Hz.

CONTROL POWER: 120 volt, single phase, 60 Hz.

MOBILITY: 4 rubber casters: 2 rigid and 2 swivel with foot operated locks.

ACCESSORIES: Optional canvas protective cover and multi-conductor flexible load cables available.

WEIGHT: Approximately 295 lbs. [133.8 kg]

All dimensions are in inches [millimeters]. Specifications subject to change without notice.

6255 Halle Drive • Cleveland, Ohio, U.S.A. 44125-4615 • 216.573.7600 • FAX [phone]
www.avtronloadbank.com • [e-mail] Bulletin 271 • Rev. D

Quality System Certified to ISO 9001